Figure 3.
Inhibition of CXCR2 with SB225002 and anti-oxidant suppressed the change of EMT markers induced by TGF-β2 and H2O2 in ARPE-19 cells. (a) SB225002 (1.0 µM) inhibited the TGF-β2-induced protein expression of Snail, Slug and E-cad. (b) The over-expression of α-SMA induced by 200 µM H2O2 was inhibited by 1.0 µM SB225002. (c) The TGF-β2 (20 ng/mL)-induced α-SMA protein expression was inhibited by both anti-oxidant N-acetyl-L-cysteine (NAC) and 1.0 µM SB225002. (Results of 3 repeated experiments; *p < 0.05; **p < 0.01; ***p < 0.001).